NYC 9/11 Public Portal Document
Warren & Panzer Engineers, P.C.
228 East 45th Street
New York, New York 10017
Tel. (212) 922-0077
Fax (212) 922-0630
Thursday, October 18, 2001
Mr. Don Blanchard
New York Law School
57 Worth Street
New York, NY 10013
Re: TEM Ambient Air Sampling
47 Worth Street, 53 Worth Street, 57 Worth Street & 240 Church Street
W&P File #: 299.07.01
Dear Mr. Blanchard:
Ambient air sampling was performed on the floors of the buildings located 47 Worth Street, 53
Worth Street, 57 Worth Street & 240 Church Street. Transmission Electron Microscopy (TEM)
samples were collected and analyzed from all locations, one sample per floor. Samples were sent to
Scientific Laboratories in Manhattan and all samples except sample # 30 from 57 Worth Street, were
found to contain no structures (NSD). The only identified sample was found to contain one (1)
structure which is below the United States Environmental Protection (US EPA) permissible level of
seventy (70) structures. Attached tables list the laboratory results.
Along with this correspondence, I have enclosed a copy of the final air sampling chain of custody,
which show the results. If you have any questions or should you need additional information, please
contact me at (212) 922-0077.
Sincerely,
WARREN & PANZER P.C.
Michael R. Nolan
Senior Project Manager
Attachment(s)
A Member of
The Warren & Panzer Group
NYC-WTC_00013110
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